三相かご形誘導電動機の横流を模擬した回転子の試作とその特性に関する実験的考察

カテゴリ: 論文誌(論文単位)

グループ名: 【D】産業応用部門

発行日: 2019/05/01

タイトル(英語): Experimental Study using Trail Rotors to Study the Inter-Bar Current of Three-Phase Squirrel-Cage Induction Motors

著者名: 廣塚　功（中部大学），村松　智章（中部大学），渡邉　徳宏（中部大学），中村　雅憲（中部大学），鶴見　祐輔（三菱電機（株）），米谷　晴之（三菱電機（株）），亀山　正樹（三菱電機（株））

著者名(英語): Isao Hirotsuka (Chubu University), Tomoaki Muramatsu (Chubu University), Norihiro Watanabe (Chubu University), Masanori Nakamura (Chubu University), Yusuke Tsurumi (Mitsubishi Electric), Haruyuki Kometani (Mitsubishi Electric), Masaki Kameyama (Mitsubishi Electric)

キーワード: 誘導電動機，横流，ポストヒーティング，特性改善，高効率　　induction motor，inter-bar current，post-heating，characteristic improvement，high efficiency

要約(英語): At present, many types of induction motors (IMs) are used as the power sources of industrial machines. Generally, middle and small size IMs have skewed slots in the rotor bar, which is made of aluminum die cast, to reduce abnormal starting torques and electromagnetic vibration and noise. The rotor iron and rotor bars are shorted, and an electrical potential difference is generated between the rotor bars by skewing, so that the current, which is called inter-bar current, flows in the direction of rotation. However, many unclear issues exist with regard to the inter-bar current. Therefore, we have experimentally studied the effect of the inter-bar current on the characteristics of an IM. In a previous paper, a trial rotor was investigated by using the finite element method (FEM). In this paper, the effects of the inter-bar current on the characteristics of an IM are demonstrated through experiments with many test motors, which include some trial rotors that follow the previous results. In particular, it is shown that the stray load torque in the reverse rotational test is remarkably reduced when the rotor is heated to about 500℃ (abbr. post-heating), and that its influence extends the improvement of the starting torque and running performance. Furthermore, the resistance between the rotor bars are measured using ultra-low resistance meter.

本誌: 電気学会論文誌D（産業応用部門誌） Vol.139 No.5 （2019） 特集：平成30年産業応用部門大会

本誌掲載ページ: 466-471 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejias/139/5/139_466/_article/-char/ja/